织梦网站怎么做投票2021最近最火的关键词

题目链接：108. 将有序数组转换为二叉搜索树 - 力扣（LeetCode）

取中间的数作为根节点，左边的数递归转换，右边的数递归转换

class Solution {
public:TreeNode *sortedArrayToBST(vector<int> &nums) {return build(nums, 0, nums.size() - 1);}TreeNode *build(vector<int> &nums, int left, int right) {if (left > right)return nullptr;int root = (left + right) / 2;return new TreeNode(nums[root], build(nums, left, root - 1), build(nums, root + 1, right));}
};